package com.finalhomework.dms.config;

import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LHInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response,Object handler) throws Exception {

        Object loginUser=request.getSession().getAttribute("loginUser");

        if (loginUser == null) {
            request.setAttribute("msg", "没权限，请先登录");
            request.getRequestDispatcher("/stuIndex.html").forward(request, response);
            return false;
        } else {
            return true;
        }

    }

}
